section.section
  header.section__header
    h2.section__title Element
  div.section__content
    p types.js 提供以下方法来检测 Element 相关的数据类型。
  include ./isDOM
  include ./isElement
  include ./isFragment
  include ./isHTMLCollection
  include ./isHTMLElement
  include ./isNode
  include ./isShadowRoot
  include ./isTextNode
  include ./isVNode
  include ./isWindow
